Description

1,1':3',1'':4'',1''':3''',1''''-Quinquephenyl]-4,4''''-Dicarboxylic Acid, 5',5'''-Bis(4-Carboxyphenyl)-2'',5''-Dimethoxy- is a sophisticated, multi-functional organic compound characterized by an extended conjugated quinquephenyl core. This structure is highly significant for its role as a key building block (monomer) in the synthesis of advanced polymeric materials, particularly high-performance polyimides and polyamides. It is essential for researchers and manufacturers in the electronics, optoelectronics, and specialty plastics industries who require materials with exceptional thermal stability, mechanical strength, and tailored optical properties.

Application

• High-Performance Polymer Synthesis: Serves as a critical monomer for producing aromatic polyimides and polyamides used in flexible printed circuit boards (FPCBs) and high-temperature composites.
• Organic Electronic Materials: Acts as a precursor for electron-transport layers (ETLs) or hole-blocking layers in OLEDs and perovskite solar cells due to its conjugated system.
• Liquid Crystal Polymers (LCPs): Used in the development of LCPs for demanding applications in aerospace, automotive, and microelectronics.
• Metal-Organic Frameworks (MOFs): Functions as a multi-dentate organic linker for constructing MOFs with potential applications in gas storage, separation, and catalysis.
• Advanced Coating Resins: Incorporated into coatings requiring superior chemical resistance, high glass transition temperatures (Tg), and low dielectric constants.
• Pharmaceutical Intermediates: Potential use in the synthesis of complex drug molecules or diagnostic agents leveraging its rigid, functionalized backbone.

Basic Information

Item	Detail
Product Name	1,1':3',1'':4'',1''':3''',1''''-Quinquephenyl]-4,4''''-Dicarboxylic Acid, 5',5'''-Bis(4-Carboxyphenyl)-2'',5''-Dimethoxy-
CAS No.	1800290-01-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	5',5'''-Bis(4-Carboxyphenyl)-2'',5''-dimethoxy-[1,1':3',1'':4'',1''':3''',1''''-quinquephenyl]-4,4''''-dicarboxylic acid; Quinquephenyl tetracarboxylic acid derivative; Extended oligophenylene tetracarboxylic acid; Multi-phenyl carboxylic acid monomer; High-performance polymer monomer; Aromatic tetracid monomer; Conjugated oligomer acid
EINECS	Contact for details

Quality Control

Every batch of our high-purity chemical intermediates is produced under strict quality management protocols. We employ advanced analytical techniques including HPLC, NMR, and FT-IR to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing batch-specific results are provided and can be tailored to meet specific customer or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Standard Grade)
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.